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| author | Konstantin Khlebnikov <koct9i@gmail.com> | 2015-12-01 01:14:48 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-12-14 21:24:33 -0800 |
| commit | e08ca7be16f178988ccf95f96edf6eff5d89bb0a (patch) | |
| tree | 9f4045f67552a2a57e1b56044df4297fb5671c66 | |
| parent | 81ed463384847813faa59e692285fe775da7375f (diff) | |
| download | linux-exynos-e08ca7be16f178988ccf95f96edf6eff5d89bb0a.tar.gz linux-exynos-e08ca7be16f178988ccf95f96edf6eff5d89bb0a.tar.bz2 linux-exynos-e08ca7be16f178988ccf95f96edf6eff5d89bb0a.zip | |
net/neighbour: fix crash at dumping device-agnostic proxy entries
[ Upstream commit 6adc5fd6a142c6e2c80574c1db0c7c17dedaa42e ]
Proxy entries could have null pointer to net-device.
Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>
Fixes: 84920c1420e2 ("net: Allow ipv6 proxies and arp proxies be shown with iproute2")
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | net/core/neighbour.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/core/neighbour.c b/net/core/neighbour.c index 2237c1b3cdd2..d6e8cfcb6f7c 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -2207,7 +2207,7 @@ static int pneigh_fill_info(struct sk_buff *skb, struct pneigh_entry *pn, ndm->ndm_pad2 = 0; ndm->ndm_flags = pn->flags | NTF_PROXY; ndm->ndm_type = RTN_UNICAST; - ndm->ndm_ifindex = pn->dev->ifindex; + ndm->ndm_ifindex = pn->dev ? pn->dev->ifindex : 0; ndm->ndm_state = NUD_NONE; if (nla_put(skb, NDA_DST, tbl->key_len, pn->key)) @@ -2282,7 +2282,7 @@ static int pneigh_dump_table(struct neigh_table *tbl, struct sk_buff *skb, if (h > s_h) s_idx = 0; for (n = tbl->phash_buckets[h], idx = 0; n; n = n->next) { - if (dev_net(n->dev) != net) + if (pneigh_net(n) != net) continue; if (idx < s_idx) goto next; |